Power module and traction converter with same

Abstract

The invention discloses a power module and a traction converter with the same;the power module is used for driving the traction converter of a permanent magnet motor, and the power module comprises a radiator assembly, two frames, a front plate, a supporting capacitor and an L-shaped busbar; the two frames are arranged on the two sides of the radiator assembly respectively; The front plate is connected to the two frames so as to form an accommodating space together with the radiator assembly, and the two frames; the supporting capacitor is arranged in the accommodating space; the L-shaped busbar is arranged between the radiator assembly and the supporting capacitor; and the L-shaped busbar is electrically connected to the supporting capacitor and the radiator assembly. The electrical connection, the mechanical structure and the assembly mode of the power module are improved, so that the power module can adapt to different installation positions in a box body while achieving inversion and chopping functions and a control function, it can be guaranteed that the power module can be kept consistent with the incoming and outgoing line directions of the box body, and the purpose of concise and convenient wiring is achieved.

Description

technical field [0001] The invention belongs to the technical field of urban rail transit equipment, and in particular relates to a power module and a traction converter having the same. Background technique [0002] With the rapid development of rail transportation in recent years, the relevant performance of the traction system of rail vehicles, including traction power modules, has become a very important research field. [0003] The main function of the traction converter is to realize the control of the starting, speed regulation and braking of the AC motor through the conversion of electric energy between AC and DC. Its core unit is the power module, which mainly includes radiators and switching components (such as IGBT) , drive equipment, capacitors and related wiring, etc. [0004] Existing power modules mostly use four sets of inverter units or one set of inverter units. The former power module is too large, and too many components lead to an increase in the failur...

AI Technical Summary

Problems solved by technology

[0004]Existing power modules mostly use four sets of inverter units or one set of inverter units. The former power module is too large and too many components lead to failure of the power module rate increases, the latter takes up a large proportion of the space of the converter, which increases the volume and weight of the converter

The installation methods of the two forms are single, and the layout and wiring methods in the electrical cabinet are not flexible enough

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